Universidad de Granada Digibug

Repositorio Institucional de la Universidad de Granada >
1.-Investigación >
Departamentos, Grupos de Investigación e Institutos >
Departamento de Organización de Empresas >
DOE - Artículos >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10481/47386

Title: Design of Indicators of Circular Economy as Instruments for the Evaluation of Sustainability and Efficiency in Wastewater from Pig Farming Industry
Authors: Molina-Moreno, Valentín
Leyva-Díaz, Juan Carlos
Llorens Montes, Francisco Javier
Cortés-García, Francisco Joaquín
Issue Date: 31-Aug-2017
Abstract: Circular economy intends to turn waste into resources that can be reintroduced into the production process, eliminating the negative externalities from it. The impact of pig manure on the environment is one of the main challenges in agriculture. The high amount of pig manure coming from the pig farming industry complicates the management of this type of effluents, leading to a serious impact on the environment, as it pollutes the soil, the water, and the air. The concept of the indicator of circular economy was introduced to evaluate the degree of approximation of the pig manure treatment process to the circular economy model. In light of this, these indicators showed the possibility of obtaining 0.97 m3 water h−1, 49.40 kg biofertilizer h−1, and 5.33 m3 biogas h−1 per 1 m3 pig manure h−1 treated, allowing us to assess the minimization of waste generation and the efficiency of the use of resources. By applying an anaerobic digestion process to treat pig manure, reductions of water and natural gas consumptions were 47.01% and 5.33%, respectively, which leads to a reduction in emissions of 171.98 kg CO2 h−1. Consequently, pig manure can be considered as a technological nutrient that is reintroduced into the productive system, enabling the recovery of energy, water, and biofertilizer contained therein.
Sponsorship: This study has been supported and co-financed by projects from the Spanish Ministry of Economy and Competitiveness ECO2010-15885 and ECO2013-47027-P, Andalusian Government P11-SEJ-7294 and European Union (ERDF funds).
Publisher: MDPI
Description: This article belongs to the Special Issue Small Scale and Decentralized Wastewater Treatment and Reuse within the Concept of Circular Economy
Keywords: Circular economy
Pig manure
Technological nutrient
URI: http://hdl.handle.net/10481/47386
ISSN: 2073-4441
Rights : Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License
Citation: Molina-Moreno, V.; et al. Design of Indicators of Circular Economy as Instruments for the Evaluation of Sustainability and Efficiency in Wastewater from Pig Farming Industry. Water, 9(9): 653 (2017). [http://hdl.handle.net/10481/47386]
Appears in Collections:DOE - Artículos

Files in This Item:

File Description SizeFormat
MolinaMoreno_Wastewater.pdf968.01 kBAdobe PDFView/Open
Recommend this item

This item is licensed under a Creative Commons License
Creative Commons

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Valid XHTML 1.0! OpenAire compliant DSpace Software Copyright © 2002-2007 MIT and Hewlett-Packard - Feedback

© Universidad de Granada